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Multiple Choice
A) this is normal for alternation of generations.
B) one can survive and fertilize without the need for external water.
C) the microgametophyte is haploid and the megagametophyte is diploid.
D) these two structures allow fertilization without the need for external water.
E) this is normal for all sexually reproducing plants,where sperm are produced by microgametophytes and eggs by megagametophytes.
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Multiple Choice
A) an embryo sporophyte.
B) sufficient water for germination.
C) stored food.
D) a seed coat.
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A) megasporocyte.
B) female gametophyte.
C) microsporocyte.
D) male gametophyte.
E) zygote.
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Multiple Choice
A) lightly colored flowers,no landing area,and strong sweet perfume.
B) white flowers with short tubes,a wide landing area,and no odor.
C) blue or yellow flowers,a wide landing area,and not very much odor.
D) blue or yellow flowers,a wide landing area,and no odor.
E) red flowers that open in daytime,a wide landing area,and an odor resembling dead meat.
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Multiple Choice
A) ovary.
B) stigma.
C) anther.
D) filament.
E) style.
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Multiple Choice
A) bending the coleorhiza as the shoot grows through the soil; a surrounding sheath called the coleoptile.
B) providing a protective layer called sepals; surrounding them with endosperm.
C) bending their shoot as it grows through the soil; surrounding them with a protective sheath called the coleorhiza.
D) surrounding them with a sheath called a coleoptile; bending the shoot as it grows through the soil.
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Multiple Choice
A) digitalis,digitoxin,and quinine are produced by cell suspension culture.
B) large numbers of plants are grown and collected from the natural environment to produce chemicals in the laboratory.
C) chemicals are produced and extracted in high concentrations,sometimes from genetically modified cells.
D) cell suspension cultures produce the same chemicals the entire plant produces.
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Multiple Choice
A) carpel
B) stamen
C) style
D) corolla
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Essay
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Multiple Choice
A) anther.
B) stigma.
C) ovule.
D) filament.
E) style.
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Multiple Choice
A) peach
B) pea
C) rice
D) pineapple
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Multiple Choice
A) they are capable of providing their own nutrition,requiring no external nutritional sources.
B) each cell of the plant has the genetic capability of developing into an entire plant.
C) they are incapable of dividing to produce daughter cells.
D) they are metabolically inactive,existing in a state of dormancy.
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Multiple Choice
A) The sporophyte is diploid.
B) The sporophyte produces heterospores.
C) The female gametophyte is the seed.
D) The male gametophyte is the pollen grain.
E) The female gametophyte is retained within the body of the sporophyte parent generation.
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Multiple Choice
A) germination.
B) pollination.
C) fertilization.
D) coevolution.
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Multiple Choice
A) The generative cell produces two sperm.
B) The pollen tube forms in the style.
C) The tube cell produces the pollen tube.
D) There are two sperm nuclei that move down the pollen tube to the micropyle.
E) Fertilization occurs when the pollen grain germinates.
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Multiple Choice
A) A blackberry is an example of a simple fruit.
B) A fleshy fruit has a fleshy pericarp,as in a peach.
C) Most fruits are simple fruits,derived from a single ovary.
D) A dry fruit may split at maturity to release its seeds,as in a pea or bean pod.
E) A multiple fruit,such as a pineapple,forms from many individual flowers on a stem.
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Multiple Choice
A) pistil.
B) sepal.
C) receptacle.
D) petal.
E) stamen.
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Essay
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